Physical quantities

Which of the following is a derived quantity:

• Length
• Time
• Current
• Pressure

Which of the following quantities are vectors?

• speed, velocity, acceleration
• velocity, acceleration, force
• force, acceleration, mass
• length, mass, time

Identify the SI unit to measure length

• Kilogram

• Kelvin

• metre

• second

Which of the following quantity is base quantity ?

• voltage
• electric current
• electric energy
• electric power

Which of the following pairs of physical quantity and SI unit is correct ?

• Mass - SI unit : Gram
• Time - SI unit : Hour
• Electric current - SI unit : Volt
• Temperature - SI unit : Kelvin

Which of the following shows the prefixs in descending order correctly ?

• mega, giga, kilo, nano
• giga, kilo, mega, nano
• nano, kilo, mega, giga
• giga, mega, kilo, nano

What is base quantities ?

• the branch of science concerned with the nature and properties of matter and energy
• the branch of science that deals with the identification of the substances of which matter is composed
• physical quantities that cannot be defined in terms of other physical quantities

What is derived quantities ?

• a tendency to do nothing or to remain unchanged.
• combination of two or more base quantities
• the quantity of motion of a moving body, measured as a product of its mass and velocity.

Tags

NGSS.MS-PS3-1

Which quantity is not a scalar quantity?

• the age of earth

• mass of a football

• earth's pull on your body

• the temperature of an iron bar

Which of the following is a vector quantity?

• 5000 kg

• 10 m/s

• 120 km/h SE

• 45 hours